20302032 has 80 divisors (see below), whose sum is σ = 55978560. Its totient is φ = 6322176.

The previous prime is 20302027. The next prime is 20302067. The reversal of 20302032 is 23020302.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 20301999 and 20302017.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102958 + ... + 103154.

It is an arithmetic number, because the mean of its divisors is an integer number (699732).

Almost surely, 2^20302032 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20302032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27989280).

20302032 is an abundant number, since it is smaller than the sum of its proper divisors (35676528).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20302032 is a wasteful number, since it uses less digits than its factorization.

20302032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340 (or 334 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 12.

The square root of 20302032 is about 4505.7776243397. Note that the first 3 decimals coincide. The cubic root of 20302032 is about 272.8013421445.

Adding to 20302032 its reverse (23020302), we get a palindrome (43322334).

The spelling of 20302032 in words is "twenty million, three hundred two thousand, thirty-two".